We have found that a number of recordings speed up to about twice normal speed for about 2 minutes, returning to normal speed after about 5 minutes. This occurs throughout the duration of the recordings. We are using volume normalization during compression and compressing to 64K .mp3 format.

Sorry for the long silence. I see nothing unusual in the log files. The problem with the recording speed we are experiencing seems to be impacted by the length of time the windows machines we are running MCRS on remain up and running. Re-booting seems to reduce the number of instances. I have sent a sample via email...